Scottish Nitrogen Balance Sheet 2020

Footnotes

1 European Nitrogen Assessment (2011)

2 The initial release of the SNBS in 2021 included an indicative diagram of the main nitrogen flows in Scotland. Nitrogen flow diagram

3 There is further run-off and leaching from other land uses, such as forestry and terrestrial ecosystems

4 National Focal Centre Trends report (2021) Trends in critical load and critical level exceedances in the UK.

5 Bell et al. (2021) Regional freshwater nitrogen budgets for Scotland. UKCEH Report for the Scottish Government

6 Lassaletta et al. (2014) 50 year trends in nitrogen use efficiency of world cropping systems: the relationship between yield and nitrogen input to cropland. Environmental Research Letters 9:105011.

7 OECD (2013) paper: Economy-wide nitrogen balances and indicators – concepts and methodology.

8 A nitrogen budget for Scotland (2019) UKCEH report to SEPA

9 OECD (2013) paper: Economy-wide nitrogen balances and indicators - concepts and methodology

10 EU Nitrogen Expert Panel web pages

11 Regional freshwater nitrogen budgets for Scotland - NERC Open Research Archive

12 SPRI | Scottish Environment Protection Agency (SEPA)

13 Scotland's Aquaculture | Home

14 NAEI, UK National Atmospheric Emissions Inventory - NAEI, UK (beis.gov.uk)

15 Regional freshwater nitrogen budgets for Scotland - NERC Open Research Archive

16 Results from the Scottish Agricultural Census: June 2021

17 Materials to land in the circular economy (sepa.org.uk)

18 Scottish Transport Statistics No. 39 2020 Edition

19 UK road transport energy consumption at regional and local authority level, 2005 to 2020

20 Scottish energy statistics hub index - gov.scot (www.gov.scot)

21 United Nations (clrtap-tfrn.org)

22 UN ECE Task Force on Reactive Nitrogen (TFRN): Expert Panel on Nitrogen Budgets (EPNB) webpages

23 UN ECE (2021) Guidance document on national nitrogen budgets: draft detailed annexes.

24 European Commission EUROSTAT (2013) Methodology and Handbook Eurostat/OECD Nutrient Budgets.

25 Reactive nitrogen flows in Germany 2010 - 2014 (2020) report

26 Also referred to as atomic number – see for example Periodic Table of Elements - PubChem (nih.gov): select “atomic number” as display property

27 Material Flow Accounts for Scotland (2021) Report and data by Zero Waste Scotland

28 Leinonen et al. (2019) Applying a process-based livestock model to predict spatial variation in agricultural nutrient flows in Scotland. Journal of Cleaner Production 209:180-189.

29 Material Flow Accounts for Scotland (2021) Report and data by Zero Waste Scotland